Thermal Energy
Devon thinks wrapping a cotton towel around a jar of hot water will keep it warmer than without any wrapping at all. He is designing an experiment to determine whether construction paper, a paper towel, a cotton towel, or no wrapping at all will keep the water in the jar warmer.
1. Fill 4 jars with water that is 90°C.
2. Place a thermometer in each jar.
3. Wrap one jar with construction paper, one jar with a paper towel, one jar with a cotton towel, and leave one jar unwrapped. Make sure the wrapped jars have equal thickness.
4. Record the temperature of the water in each jar after 15 minutes has passed.
5. Repeat steps 1-4 two more times.